一例特高压站用电备自投误闭锁研究与改进

Research and improvement of an UHV substation auxiliary power automatic switch error lock

站用电系统对特高压变电站安全稳定运行举足轻重,备用电源自动投入装置(备自投)对站用电可靠持续运行作用重要。本文针对某特高压变电站站用电系统备自投误闭锁设计缺陷,研究了备自投工作机理,分析了误闭锁回路并给出了改进的回路接线,验证了备自投动作的正确性。

Auxiliary Power system plays an very important role in UHV substation safe and stable operation and Backup Power Source has crucial relevance for the Auxiliary Power standing reliable continuously running. Paper take an UHV substation Auxiliary Power system design flaw of Backup Power Source error lock found in the inspection as an example, locking mechanism is studied, and the improved circuit wiring is offered, guaranteeing the correctness and reliability of the Backup Power Source action.